Floor jack



" July 14, 1925. 1,546,022

H. PERSSON FLOOR JACK Filed Sept. 5, 1924 Patented July 14, 1925.

. UNITED STATES HENRY PERSSON, OFMILECR-D, MASSACHUSETTS.

FLOOR (TACK.

Application filed September efficient device for use in connection withthe laying of floor or ceiling boards of the tongue and groovecharacter.

present invention is to provide a floor jack of the above mentionedcharacter, whereln the same is of such construction as to enable thedevice to be readily and easily placed in position for use and will savecons derable time and labor in laying floor or ceiling boards.

A further object of the invention is to provide a floor jack of theabove mentioned character, which is simple in constructlon,

inexpensive, strong and durable and furthermore adapted for the purposesfor which it is designated.

Other objects and advantages of this invention will become apparentduring the course of the following description.

In the accompanying drawing forming a part of this specification and inwhich like numerals designate like parts throughout the same:

Figure l is a side elevation of the floor jack embodying my inventionand Figure 2 is a top plan view thereof.

In the drawing wherein for the purpose of illustration is shown thepreferred .embodiment of my invention, the numeral 1 designates anelongated supporting arm which is disposed horizontally and carries onthe forward end thereof the transversely extending head 2, the latterbeing provided in its outer longitudinal face with the grooves 3 forengagementwith the tongue of each of the boards which are to be laid inthe manner well known in the art. The rear end of the arm 1 is providedwith a longitudinally extending slot 4 and the purpose thereof willhereinafter be more fully described.

Fulcrumed at its lower end on the projection 5 formed on one side of thearm 1 adjacent the head 2 is the elongated operat- One of the importantobjects of the 5, 1924. Serial No. 736,076.

ing lever 6. The fulcrum for the lever is illustrated at 7. The lever 6extends upwardly from the horizontally disposed arm 1 and the upper endthereof is slightly offset as illustrated at 8 to facilitate the easyoperation thereof.

Pivotally supported at its forward end to the operating lever 6 directlyabove the fulcrum 7 is the foot member 9.- The pivotal connectionbetween the foot and the lever is shown at 10 in the drawing. The foot 9is inclined downwardly and extends adjacent the side of the arm 1on-which the projection 5 is formed and terminates at its lower end inthe sharpened spur 11 the latter being adapted for engagement with thefloor joists when the floor jack is in use.

For the purpose of holding the lever and foot in their proper positionsand to further permit the movement thereof in an efficient manner aheaded stud 12 extends laterally from the lower portion of the foot 9and is adapted for slidable movement in the slot 4 formed in the rearend of the arm 1. The stud and slot cooperate to provide a guide meansfor facilitating the sliding movement of the arm 1 and the head 2thereon whereby the board, the tongue of which is engaged by the groove3 of the head 2, may be moved into engagement with the adjacent board inthe manner well known in the art.

The provision of the spur 11 on the rear end of the foot 9 will preventany possibility of the floor jack from creeping or otherwise moving outof its proper position during the laying of the floor or ceiling boards.The simplicity in which my device is constructed enables the same to beeasily and efiiciently operated and will save considerable time andlabor in carrying out the purposes for which the same is designated.Furthermore when the floor jack is not in use, the same may be readilyfolded into such position as to occupy a minimum amount of space.

While I have shown the preferred embodiment of my invention, it is to beunderstood that various changes in the size, shape and arrangement ofparts maybe resorted to without departing from the spirit of theinvention and the scope of the appended claim.

Having thus described the invention what I claim is A floor jackcomprising an arm provided at one end with an integral head providedwith a groove in one side for reception of a bored tongue, the oppositeend of said arm being hii urcated' to' provide a girid e slot betweenthe furcations, a lever fulcrumed at its lower end upon said arm andadjacent said head, the upper free ends of the lever being offset, afoot pivotally connected at one end to said lever adjacent the point ofpivotal connection of the latter, the pivot l of the foot being close toand normally above the lever pivot, the intermediate portion oi saidfoot extending across the said arm and the free end of the; foot, beingprovided with a pointed spur, and a bolt connected to said foot andextending slidably between the furca'ti-ons.

In testimony whereof I aflix my signatiire.

HENRY PERSSON.

